Home / 21,972.29-32,963.29-10,279.13

Finding the Fourth Proportional to 21,972.29, 32,963.29 and 10,279.13

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Solution

The fourth proportional to 21,972.29, 32,963.29 and 10,279.13 is: 15,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.29 : 32,963.29 = 10,279.13 : x
  2. Step 2: Convert to fraction form
    21,972.29/32,963.29 = 10,279.13/x
  3. Step 3: Cross multiply
    21,972.29x = 32,963.29 × 10,279.13
  4. Step 4: Simplify right side
    21,972.29x = 338,833,752.62
  5. Step 5: Solve for x
    x = 338,833,752.62/21,972.29
  6. Step 6: Final answer
    x = 15,420.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.